-The concept of the outlandish Turtle-shaped floating city, called the Pangeos, would be run on solar power

-The 'terayacht' would accommodate 60,000 guests and feature hotels, shopping centres and parks 

-Turtle-shaped vessel would be 1,800 ft long and 2,000 ft wide and take eight years to build, designers said

Italian designers have drawn up plans for an outlandish Turtle-shaped floating city that would cost £6.8 billion to build.

The concept of the 'terayacht', called the Pangeos, would be run on solar power and feature hotels, shopping centres and parks.

The floating city would accommodate 60,000 guests and even include a runway for planes as well as helicopter pads, Italian design studio Lazzarini said.